I'm a TreeStyleTab user in Firefox with always >200 Tabs open. But I never got the idea of Tabs in Explorer (or Finder for that matter).

When I use multiple Explorer Views, most of the time I do it, to interact between them. This is not the case for websites.

So for drag and drop interactions, two windows always beat the drag, hover over the other tab until it catches my intend to switch to this tab, and drop it there workflow.

The same goes for copy and paste. Ctrl+c, alt+tab, ctrl+v. I'm sure there is a corresponding command to cycle through the tabs, but alt+tab is deep muscle memory, that it beats this command always.